Example usage for org.eclipse.swt.widgets Composite getChildren

Introduction

In this page you can find the example usage for org.eclipse.swt.widgets Composite getChildren.

Prototype

public Control[] getChildren() 

Source Link

Document

Returns a (possibly empty) array containing the receiver's children.

Usage

From source file:org.eclipse.swt.examples.launcher.SplitLayout.java

private Point computeHSplitSize(Composite composite, int wHint, int hHint, boolean flushCache) {
    Point size = new Point(marginLeft + marginRight, marginTop + marginBottom);
    Control[] children = composite.getChildren();
    for (Control child : children) {
        Point childSize = child.computeSize(wHint, hHint, flushCache);
        size.x = Math.max(size.x, childSize.x);
        size.y += childSize.y + spacing;
    }//from w w  w . j  av a2 s.  com
    return size;
}

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From source file:org.eclipse.swt.examples.launcher.SplitLayout.java

private Point computeVSplitSize(Composite composite, int wHint, int hHint, boolean flushCache) {
    Point size = new Point(marginLeft + marginRight, marginTop + marginBottom);
    Control[] children = composite.getChildren();
    for (Control child : children) {
        Point childSize = child.computeSize(wHint, hHint, flushCache);
        size.x += childSize.x + spacing;
        size.y = Math.max(size.y, childSize.y);
    }/*  www .  j av  a  2 s .c  o  m*/
    return size;
}

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From source file:org.eclipse.swt.examples.launcher.SplitLayout.java

/**
 * @see Layout#layout(Composite, boolean)
 *///from w ww .  ja  v a2  s  .  c  o  m
@Override
protected void layout(Composite composite, boolean flushCache) {
    Rectangle clientArea = composite.getClientArea();
    computeSize(composite, clientArea.width, clientArea.height, false);

    Control[] children = composite.getChildren();
    clientArea.x += marginLeft;
    clientArea.y += marginTop;
    clientArea.width -= marginRight + marginLeft;
    clientArea.height -= marginBottom + marginTop;
    Point position = new Point(clientArea.x, clientArea.y);

    for (Control child : children) {
        final Rectangle bounds;
        if (splitDirection == splitHorizontally) {
            int height = clientArea.height / children.length;
            bounds = new Rectangle(position.x, position.y, clientArea.width, height);
            position.y += height + spacing;
        } else {
            int width = clientArea.width / children.length;
            bounds = new Rectangle(position.x, position.y, width, clientArea.height);
            position.x += width + spacing;
        }
        bounds.width = Math.max(bounds.width, 0);
        bounds.height = Math.max(bounds.height, 0);
        child.setBounds(bounds);
    }
}

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From source file:YetAnotherBorderLayout.java

protected void getControls(Composite composite) {
    // Iterate through all the controls, setting
    // the member data according to the BorderData.
    // Note that we overwrite any previously set data.
    // Note also that we default to CENTER
    Control[] children = composite.getChildren();
    for (int i = 0, n = children.length; i < n; i++) {
        Control child = children[i];
        BorderData borderData = (BorderData) child.getLayoutData();
        if (borderData == BorderData.NORTH)
            north = child;/*from w  w  w  .ja  va  2s .  c om*/
        else if (borderData == BorderData.SOUTH)
            south = child;
        else if (borderData == BorderData.EAST)
            east = child;
        else if (borderData == BorderData.WEST)
            west = child;
        else
            center = child;
    }
}

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From source file:org.eclipse.swt.examples.controlexample.Tab.java

/**
 * Creates the "Control" group.  The "Control" group
 * is typically the right hand column in the tab.
 *///from w ww . ja  va2s. c  o m
void createControlGroup() {

    /*
     * Create the "Control" group.  This is the group on the
     * right half of each example tab.  It consists of the
     * "Style" group, the "Other" group and the "Size" group.
     */
    controlGroup = new Group(tabFolderPage, SWT.NONE);
    controlGroup.setLayout(new GridLayout(2, true));
    controlGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
    controlGroup.setText(ControlExample.getResourceString("Parameters"));

    /* Create individual groups inside the "Control" group */
    createStyleGroup();
    createOtherGroup();
    createSetGetGroup();
    createSizeGroup();
    createColorAndFontGroup();
    if (rtlSupport()) {
        createOrientationGroup();
        createDirectionGroup();
    }
    createBackgroundModeGroup();

    /*
     * For each Button child in the style group, add a selection
     * listener that will recreate the example controls.  If the
     * style group button is a RADIO button, ensure that the radio
     * button is selected before recreating the example controls.
     * When the user selects a RADIO button, the current RADIO
     * button in the group is deselected and the new RADIO button
     * is selected automatically.  The listeners are notified for
     * both these operations but typically only do work when a RADIO
     * button is selected.
     */
    SelectionListener selectionListener = widgetSelectedAdapter(event -> {
        if ((event.widget.getStyle() & SWT.RADIO) != 0) {
            if (!((Button) event.widget).getSelection())
                return;
        }
        if (!handleTextDirection(event.widget)) {
            recreateExampleWidgets();
            if (rtlSupport()) {
                /* Reflect the base direction falls back to the default (i.e. orientation). */
                ltrDirectionButton.setSelection(false);
                rtlDirectionButton.setSelection(false);
                autoDirectionButton.setSelection(false);
                defaultDirectionButton.setSelection(true);
            }
        }
    });
    Control[] children = styleGroup.getChildren();
    for (Control child : children) {
        if (child instanceof Button) {
            Button button = (Button) child;
            button.addSelectionListener(selectionListener);
        } else {
            if (child instanceof Composite) {
                /* Look down one more level of children in the style group. */
                Composite composite = (Composite) child;
                Control[] grandchildren = composite.getChildren();
                for (Control grandchild : grandchildren) {
                    if (grandchild instanceof Button) {
                        Button button = (Button) grandchild;
                        button.addSelectionListener(selectionListener);
                    }
                }
            }
        }
    }
    if (rtlSupport()) {
        rtlButton.addSelectionListener(selectionListener);
        ltrButton.addSelectionListener(selectionListener);
        defaultOrietationButton.addSelectionListener(selectionListener);
        rtlDirectionButton.addSelectionListener(selectionListener);
        ltrDirectionButton.addSelectionListener(selectionListener);
        autoDirectionButton.addSelectionListener(selectionListener);
        defaultDirectionButton.addSelectionListener(selectionListener);
    }
}

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